A kinetic study on Rh/binap-catalyzed 1,4-addition of phenylboronic acid to enones: negative nonlinear effect caused by predominant homochiral dimer contribution |
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| Authors: | Kina Asato Iwamura Hiroshi Hayashi Tamio |
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| Institution: | Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan. |
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| Abstract: | A kinetic study on the Rh/binap-catalyzed 1,4-addition of phenylboronic acid using reaction calorimetry revealed that the catalytically inactive dimeric hydroxorhodium complex Rh(OH)((R)-binap)]2 (RR-4) is the resting state. A negative NLE in eeprod and an amplified reaction rate were predicted and observed in the present reaction system characterized by the preferential formation of homochiral dimer. |
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